Allen didn’t become a demon, he become a Noah which is a enemy to the black order. Allen became a Noah thanks to kanda by stabbing him on the side of his stomach with his sword which was a innocence.
As we know, Allen has a Noah in his body who is called Neah. Neah is actually Allen’s uncle and mana’s brother.
The earl when he was talking to Allen, was either mana himself or something else which we still haven’t figure it out. Would you like to know anything else?
Oh yes thank you for answering, actually I didn't mean that allen became a demon, what I meant was who was the one who became a demon, who is this "mana"person who he called and cursed allen. Lol I became confused since it was reavealed that mana was the earl. I was like, then who is the one who died and became a demon and cursed allen? Σ(っ°Д °;)っ
Glad to know my reply answered your questions
I’m actually wondering that myself. One of the many mysteries still left unanswered.
he's question is actually whos soul did Allen called at the beginning of the story if Earl and Mana is the same person, like whos Allen akuma that left him the scar on his eye..
anyway i feel like were getting closer to that question.
I think maybe its the former soul of the body. like if the earl has to awake in a different body like the rest of the noahs ?
The biggest mystery of all time, been thinking abt this for years...
I'm kinda confused now, Mana is the Millennium Earl then who is the Earl who talk to allen when "Mana" died and who the hell did allen called and became a demon?